Magnetocaloric alloys useful for magnetic refrigeration applications

Ihnfeldt, Robin; Kim, Eunjeong; Jin, Sungho; Chen, Renkun; Xu, Xia

Magnetocaloric alloys useful for magnetic refrigeration applications

Patent · Tue Aug 15 04:00:00 EDT 2023

OSTI ID:2222156

Ihnfeldt, Robin; Kim, Eunjeong; Jin, Sungho; Chen, Renkun; Xu, Xia

This invention relates to magnetocaloric materials comprising alloys useful for magnetic refrigeration applications. In some embodiments, the disclosed alloys may be Cerium, Neodymium, and/or Gadolinium based compositions that are fairly inexpensive, and in some cases exhibit only 2nd order magnetic phase transitions near their curie temperature, thus there are limited thermal and structural hysteresis losses. This makes these compositions attractive candidates for use in magnetic refrigeration applications. Surprisingly, the performance of the disclosed materials is similar or better to many of the known expensive rare-earth based magnetocaloric materials.

Research Organization:: General Engineering & Research, LLC, San Diego, CA (United States); Univ. of California, San Diego, CA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: SC0015932

Assignee:: General Engineering & Research, L.L.C. (San Diego, CA); The Regents of the University of California (Oakland, CA)

Patent Number(s):: 11,728,074

Application Number:: 16/969,858

OSTI ID:: 2222156

Country of Publication:: United States

Language:: English

References (9)

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